What does StackOptic analyze?

StackOptic runs 18 analysis modules on any public website from a single URL. It detects 7,000+ technologies (CMS, frameworks, analytics, payments, CDN, hosting), evaluates SSL certificates and HTTP security headers with grades from A+ to F, measures Core Web Vitals (LCP, CLS, TBT, FCP), audits SEO meta tags and structured data, checks email security (SPF, DKIM, DMARC), analyzes AI & LLM readiness including bot access and llms.txt validation, extracts color palettes and typography, estimates carbon footprint, and generates permanent shareable reports.

Does it work on sites behind Cloudflare or bot protection?

Yes. StackOptic uses a real browser engine that loads pages exactly like a human visitor — executing JavaScript, rendering CSS, and handling redirects. This allows it to bypass Cloudflare, LiteSpeed, Sucuri, and other bot protection systems where traditional crawlers and HTTP-only tools fail.

What do I get on the free plan?

The free plan includes 5 analyses per day with access to all 18 modules, full scores, technology detection, and security grades. Every report is permanently accessible via a unique shareable URL — no login required to view. No credit card needed. AI-powered insights, re-analysis, PDF/JSON export, and comparison features are available on Pro ($24/mo) and Agency ($99/mo) plans.

What is AI & LLM readiness analysis?

This module evaluates how visible and citable your website is to AI search engines like ChatGPT, Perplexity, Google AI Overviews, and Claude. It audits access permissions for 8 major AI bots, validates llms.txt and llms-full.txt files, scores citation-ready content structure, and analyzes structured data (JSON-LD) for GEO readiness — helping you rank in the next generation of search.

How long does an analysis take?

Most analyses complete in under 10 seconds. StackOptic runs all 18 modules in parallel using a real browser session, so you get technology detection, security audit, performance metrics, SEO analysis, and AI readiness scoring simultaneously.

How accurate are the results?

Detection is based on real browser execution — DOM inspection, JavaScript runtime analysis, HTTP headers, and DNS records. With 7,000+ technology signatures and Lighthouse-calibrated performance scoring, StackOptic achieves high accuracy for mainstream technologies.

What security checks are performed?

The security module evaluates SSL/TLS certificates, 12+ HTTP security headers (HSTS, CSP, X-Frame-Options, Permissions-Policy, Referrer-Policy), HTTPS enforcement, and email authentication (SPF, DKIM, DMARC). Each site receives a letter grade from A+ to F with specific remediation steps.

Do you store the websites I analyze?

StackOptic only stores publicly available information that any visitor to a website would see — HTML content, HTTP headers, DNS records, and screenshots. We do not access private data, log in to websites, or perform any intrusive testing.

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dedecms.com

https://dedecms.com· First analyzed 14 Feb 2026· Updated 14 Feb 2026

Export

dedecms.com

Mobile

Sponsored

Hosting Provider

YunNan LanDui Network Technology co., LTD

IP Address

43.228.79.42

Server Location

🇨🇳 Beijing, China

ASN

AS134765

Organization

YunNan LanDui Network Technology co., LTD

Server

Nginx

Nameservers

ns1.22.cn.ns2.22.cn.

Performance

Page Speed

483 KB

23 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Tailwind CSS

Infrastructure

Hosting

YunNan LanDui Network Technology co., LTD

Technology Stack

4 Technologies Detected

CSS Frameworks

Libraries

Web Servers

SEO Analysis

D52/100

dedecms.comdedecms.com

织梦 (DedeCMS) 官方网站 - 内容管理系统 - 上海卓卓网络科技有限公司

Title Length41 chars

Recommended: 50-60 chars

Description Length41 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (13/13)

6 issues found

Upgrade to view details

Sponsored

Security Score

0%Critical

No SSL

No WAF

N/A

Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-headers

DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-...

access-control-allow-methods

GET, POST, OPTIONS

access-control-allow-origin

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=utf-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mxbiz2.qq.com

mxbiz1.qq.com

Domain Information

dedecms.com

Domain Age

21y 7m

Created

28.06.2004

Expires

28.06.2028

Last Updated

17.02.2025

Registrar

22net, Inc.

DNSSEC

Not Enabled

Typography & Readability

system-ui

70/100

Readability

/30

40/40

20px · LH 1.50

Hierarchy

/20

25/25

2x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

system-ui

Sans40px

Body Font

system-ui

Sans20px

Contrast Ratio

Reading Comfort

~34 CPL

Needs attention

40px

32px

20px

✅ Excellent readability: 20px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.0x larger than body text.

✅ Excellent performance: System fonts eliminate font loading delays (better LCP).

✅ Consistent design: Single font family with weight variations is a modern best practice.

⚠️ Risky: Text appears on background images without overlay protection.

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

9 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(5)

Sponsored

Last analyzed: 14 Feb 2026 at 03:34

Historical Analysis & Change Tracking